Add tests

Signed-off-by: Kipchirchir Sigei <[email protected]>

onadata/apps/main/tests/test_user_validation.py

@@ -0,0 +1,26 @@
+from onadata.apps.main.admin import CustomUserChangeForm, CustomUserCreationForm
+from onadata.apps.main.tests.test_base import TestBase
+
+class TestUserValidation(TestBase):
+    def test_custom_user_creation_form_invalid_username(self):
+        # Try to create a user with a hyphenated username
+        form_data = {
+            'username': 'john-doe',
+            'password1': 'testpassword',
+            'password2': 'testpassword'
+        }
+        form = CustomUserCreationForm(data=form_data)
+        self.assertFalse(form.is_valid())
+        self.assertIn('username', form.errors)
+        errors = form.errors.get('username')[0]
+        self.assertEqual(str(errors), "Usernames cannot contain hyphens.")
+
+    def test_custom_user_change_form_invalid_username(self):
+        # Try to change a user's username to one with a hyphen
+        user = self._create_user('bob-user', 'bob')
+        form_data = {'username': 'bob-user-1'}
+        form = CustomUserChangeForm(data=form_data, instance=user)
+        self.assertFalse(form.is_valid())
+        self.assertIn('username', form.errors)
+        errors = form.errors.get('username')[0]
+        self.assertEqual(str(errors), "Usernames cannot contain hyphens.")